Window-control means



H. A. MYERS WINDOW CONTROL MEANS Y Filed ApriLV. 1924 4 Aug. 18, 1925 1,549,789

I /Ww v for. raising and lowering windows that is utentedl llgzg .Ytsem Friesrruannr a. names, or ronnno, euro,

WINDOW-CONTROL Means...

- Application filed April 7,

To all whom it may concern:

Be it known that I, HUBERT A. MYERS, a citizen of the United States, and a resident of Toledo,- in the county of Lucas and State.

of Ohio, have invented a new and useful Window-Control Means, which invention is fully set forth in the following specification. My invention has for its object to provide an eliicient'window control mechanism so constructed that it may be made at a low cost of production. The window control mechanism may be used for raising and lowering windows located in any structure,

but the invention finds its greatest advantage when used for raising and lowering windows 1n vehicles, such as automobiles,

' since it is so constructed that the .windov 2|) movement that is comparatively short in maybe raised or lowered by an actuating "lengthand yet the window will be held control member.

after. The structure selected as an example is shown in the accompanying drawings.

:Figure lot the drawings illustrates a side view oil a part of the construction in which a window having a window control meclr anism embodying my invention is located. Figure 2 illustrates a sectional view of the frame. and shows an edge view of thewindow control mechanism. Figure 3 illustrates a flan ed plate manually operated to raise and ower the window. Figure 4 illustrates a rack that is actuated by the plate shown in Figure-.3. Figure 5 is a sectionalview of a part of the rack shown in Fig. 4. Figure 6 1s a sectional view of till the cam plate and connected parts. "Constructions containing my invention are preferably so formed that they-may be made of sheet metal 'whereby the parts may; be made at a low cos't by die cutting and pressing them to shape. In the construction. shown in. theidrawings, an arm 1 that may be formed from sheet metal, is .pivotally connected to a frame 2 that supports the merit of the the weight 0? 1924. Serial in. 704,597.

parts ofthe window control mechanism, and thus provides a means wheres, by the window control mechanism may "be" installed as .a unit in the construction in which the window islocated. The frame 2 is secured by'suitable means to the structure in which the window. 3 is located. The frame 2 may be connected to bars 4: forming a part of the skeleton or frameworkof the bodyof an automobile. The rotatable arm liand the frame 2 are preferably lo-- cated in a pocket for receiving the window and into whichthe window may be lowered in the manner well known inthe art. The 7 I arm 1 may be. counter-balanced to a' more or less extent by means oi-an involute spring 5, one end of which is connected to the arm 1 and the other end is connected to a fixed pivot pin used for pivotally supporting the arm. 1. The outer end of the arm is pro:

vided with a roller 6 that rolls alongthe under side of the U-bar or channel bar 7. The channel bar 7 forms a protective cover ing for thelower edge of the glass 8 of the 3b window. The U-bar 7 may be a part of a frame that extends, not only, alongthe low;

er edge of the glass 8, but also along two side edges. More commonly the channel barv 7 extends along the lower edge of the 5 glass 8 only and covers the loweredge por-" tionof the glass. Thus the window 3 is supported on the roller 6 and as the arm 1 is swung on its .pivot pin the window is of the pivotal movements induced in the arm 1. i

In order to prevent the roller 6 from slipping from beneath-theedge of the glass, a

" raised or lowered according to the direction pair of plates 9 and 10 are supported on 9 each side of the roller 6 and on the pin' 11' that pivotally supports the roller. The plate 9 may be inthe form of a washer located on the pin 11.-, The plate 10 is lo- -cated between the roller 6 and the end of the arm Land is provided with a lip 12 that hooks over a flange 13' that may. be formed along the lower edge of the channel,

.bar 7. As the rollerfi is moved along the lower side of the channel bar 7, the lip 12 will move along the flange 18 and so that when the resistance to the downward move the glass, the arm 1- will positively draw the glass downwardinto the pocket. Also the lip 12 will prevent the glass froni slipping from the roller on the glass 8 is sufficient to overcome the glass 8 and the roller 6 will be maintained in position such that theglass 8 will be operated upon by the arm 1 whenever the arm 1 is actuated, and a rigid connection will be always maintained between the end of the arm 1 and the window. I

The arm 1 is actuated preferably by means of a crank operating through a sunple and efficient mechanism that is so con- .structed that it will lock the arm 1' in any positionto which it may be 'moved, as

against the weight of the window notw1th-' standing the jarring that maybe produced by the movement of the vehicle over the road. The mechanical connection between the crank 15 and the arm 1 comprises a cam plate 16 formed of sheet metal that may be easily cut and shapedby dies. The cam plate 16 is provided with a cam flange 17 that is involute in form, one end of the 39 flange 17 terminating at a point at substantially the same radial line that the other end is located on, and at a point-somewhat greater from the center of rotation of the cam plate. The cam plate is connected to the crank 15. The cam plate is located at a slight angle tothe vertical sides of the frame 2 so as to bring the lower edge of the cam plate into engaging relation with a rack 18 and to permit the upper edge of 40 the cam plate to clear the teeth of the rack.

The rack 18 is also formed of sheet metal and consequently'may bereadily cut and pressed to shape by unch presses. It is so formed that it may be formed of a comparatively light weight metal and yet have the required'strength to withstand any compression or tension that it is subjected to in the ordinary useof the mechanism. It is provided with teeth that may be struck up from the sheet metal of which it is formed.

In theconstruotion shown in the drawing. the rack is provided with a plurality of pairs of teeth that are disposed in spaced relation to each other at distances apart that are substantially equal to the distances between the ends of the flange 17 formed on the. cam late and so that in rotation of the cam p ate the pairs of teeth-will bc engaged or disengagedby the end portions of the flangel? successively. The teeth of each pair are located sufliciently distant apart to permit the flange 17 to pass between the teeth of each pair and yet'sufficiently close together to prevent free movement vertically of the rack 18 relative to rll,549,789

curvature that corresponds substantially to the general curvature of the flange 17. The curvature of the flange ,17 may change slightly and progressively from one end of the flange to the other end, or the center of curvature may change to maintain a sub stantially constant curvature in the flange. The rack 18 may be formed of a pair of strips 19 and 20 that are bent in the form of a channel. Tongues 21 and 22 are struck up from the web or bottom of the ,chan-.

n cls. The tongues 22.are inserted through the holes that are formed in the channel 19 in cutting the channel 19 to form and position the tongues 21. The tongues 21 and 22 are so positioned relative to eachother that they will be located on opposite sides of the flange 17, as succeeding pairs of tongues are engaged in the succeeding rotations of the cam plate. The channel members 19 and 20 may be secured in their relative positions by any suitable means. The channel 20 may be so formed as to fit within the channel 19 and the sides of the channel 19 may have a width sudficient that they may be'bent over the edges of the sides of the channel 20. and 20 will be securely though frictionally connected to each other and securely held in their relative positions.

Thus the channels 19' The rack 18 is pivotally connected at one 9 end to the arm 1 by means of the pivot pin tionto the cam plate 16 by means of a shell 25 which also constitutes a guide for the rack 18, as itis. moved lengthwise b the operation of the cam plate 16. The s ell 25is pivotally eonnected to the shaft 26 while the cam plate 16 is provided with a hub 27 that may be struck up from the plate, and is keyed to the shaft 26. The shaft 26 extends through the cam plate and an openin 28 formed in the shell 25. The outer end of the shaft 26 is riveted over the edge of the shell about the opening 28 and so as to permit rotation of the shaft 26relative to the shell 25 to produce rotat-ive movements of the cam plate 16 relative to the shell 25. The rack 18 is thus moved through the shell 25 as the cam plate 16 is rotated, to engage-successively the teeth of thefrack. This swings the arm either upward or downward according to the direction of rotation of the cam plate, to raise or lower the window.

The shell 25 is preferably formed of sheet weaves sides of the channel like portion 30 are so formed as to maintain the plate 16 at a slight angle to the rack 18 in that the lower ends of the sides of the channellike portion are shorter than the upper ends of the sides, which places the plate 16 and the shaft 26 at a slight angle to the verticaland horizontal respectively, and maintains the rack 18 in vertical plane.

1. In a window control mechanism, a pivoted arm for raising and lowering the window, a rack pivotally connected to the arm, a flanged spiral cam for raising and lowering the rack to raise and lower the window, a

frame, a crank and shaft pivotally supportthe end of the shaft and located within the flange of the cam and surrounding the rack for guiding the rack across the cam.

2.111 a window control mechanism, a pivoted arm for raising and lowering the window, a rack pivotally connected to the arm, a flanged spiral cam for raising and lowering the rack to raise and lower the window, a frame, a crank and shaft pivotally supported in the frame and connected to the cam for rotating the cam and an oblong member surrounding the rack and swiveled on the end of the shaft and located within HUBERT A. MYERS. 

